Typewriting machine



June l0, 1930. F. u. coNARD TYPEWRITING MACHINE Filed April 4. 1928 FREDERICK U. commun; `on BRIDGEPORT, t

`I GLLIOT'L FIsHnnOOr/IPANY, on NEW YORK, N. Y., A CORPORATION @DELAWARE OONNLEQTICUT, JAssrcrnonl 'NTO -UNDnnWOOD y Appiacidn ined Aprila,

`flhe presentinvention relates tO means in a portabletypewriting `machine for centering L and `locking the platen-carriage and for lock "fing `the 4escapement-mechanisrn against dis 5 placement, y preparatory tO closing Vthe cover ofthecarryingfcase lt isnsualtofcenter the `platenearriage by releasing 'the "saine from u `the escapementsmechanism lby Operation Oi i, 1 V the` carriage#releasel lever, and permittinga ,0 spring-motor to pullfthe carriage to thevleft against a s`t0p`,bya separate Operation.

lt is a featureof the present invention to provideineans Whicha're effective by one convenientoperation for releasing the `carriage andlocking thereleased carriageOntheinan i rame,jand lockingthe escapeinent-rack in releasedposition. Q i ncarrying ont Amy invention, as applied 1Z0` to an `UnderWOOd lliioltable typeW-riting `ina- 1 L chine,`a downwardlytfrnovabl'eharriagelcent teringlleyer isipositionedat thelright side-"Of theiplatenLshaft. In the form ofthenven J tion illustrated, an Operative connection-is f preferably l provided between the "carriagerelease lever'and thecentering leyen'WhiCh-is Veiectiye,npon Operation Of itlie lat-ter, `tO release the eScapernent-rack.` Thereupon the released lcarriage land `the-centeringleyer are pulled lei'twardly by the usuaLspring-niotor untilthe depressed "lever abats againstla stop. A leftwardlyextending looking tongtle on theleyer is arrangedto engage under a "lee1p` er fior retaining the *lever in its carriage-ra easing position. Upon opening the *case f -he keeper, andthe stop-lever is returned to "ment-rack is restoredlto its piniom Another `feature `Of `the rinvention lnits preferredforrn resldesinlthe positioning of riagewcenteringlever Vside "by side, Lbot-h piv- Operative connection between them, whereby f` Operation of the centering vlever Operates the y s i `release-lever, brit Operation of the latter does 59 :notfaect the centering-leven s 115i from the escapeinent-mechanisni, fcentering :the platenfcarriageandinay be pivotedfnpon posi-tion aronndltheinachine; l

Figure @i5 -7`ifs Ea disassembled perspectiye -again,fth`e platencarri'agemay `-be moved *to 5 the "right tO withdrayvtheltongue from Under fnorinal position by afspringfandlthefescape the usual i carriage-release lever tand the *cari Oted about the same ulcrum With a One-Way? "Otherffealtares and advantages Will hereinafterfapipear. y t

jnthe accompanying drawings, y '-'Figure 1 is "a fragmentary, diagrammatic, plan '-viewpshown partly in section, of jan Underwood ltypeWrit-ing machine having the nig-areaisafragmeatarylpetspeaiyeview of the!rightihandfsitle `portion of an Undr- Wood @portable typewraiag machin-e having leveribeing shown pressed down 4in*Operated position, and about tO theplaten-carriage engage Ithe )track Of i View `or are taking ave-r `of:the1presemla y yention'fand other" parte atlth'elieft side'of the platenecarriage which icooperate "with lthe loclnngflever. g 1` t Thenresent'invention 1s illustrated as a 3- plied toy an `Underwocdportable typewriting y machine in ,which types 10strikeagainsta platen 11 carriedpn a-shaft oraxle The t leftvhanfd vend ofrtheshaft` isfijournaled in `la "Iet-,handenfdplate 1 3 Of a platen-carriage 14,1Y7Vhihlinlndes a:right-handendlplate15 and a @foss-plate i6 ,teastad` between [the supported on *the rightiliand Aendl 15, which `:Will "be frnore fully described herein- .ar-eea The aaotefaeetfibed para, exceptrhe l `sition itwill be substantiallyparallel to the flange. An, `operatorsl .finger 65, pressing inaintaiii thefilug 63 in effective position for e" engagingl Ithe flange `39 `While the i carriage Q leisjinoving to the left. The downwardly- Uponreinoving the finger 65` a tensile spring inthe lever 50, betweenthe bends `and `in the superjacent flange 33, is effective to swing the lever `upward until the lug 63is stopped squarely againstthe `under side *ef the flange 39, which, in effect, locks the lever 50"incarriage-arresting relation tothe shiftframe. In some cases, itmay be necessary,as illustrated Figure 3,\to cut away a short section of; the right end of the flange `39in order thatthe latter may engage the lugljust when thecarriage 14C is accuratelycenteredfo-n `the mainframe 4t2. l i In an Underwood` portable typevvriting machine, it is usualto positiona feed-roll-re- `lease lever adjacent the right-hand e1idi plate 15 of `the carriage lll adjacentthe rear sidethereot To avoid interference Withthe i leftward bend `55 ,is `inadejin the bodyeot' the lever 50. lt will be noted thatthe `lug 63,

resting the moving carriage le, is joined to l he lever a shortdistance toltlierearjof the `leftwardly-entending` portion between the from `the bend is` removedfroin the` endthe iigidend-plate 15, `afshort` integral lug lever 5l), a short distance in front of the "ininates very closely adjacent tlieflet't faceiof tlieend-plate l5.` The hole 5l in the fulcruin l inovesup againsttheflange 39, and theend of the lug 69 isforcedup against the right face nient of the `lever` and the carriage-` i Theforeine i5. i .e

i nveaiei` lightlylonthefingenpiece 59, is effective to extending portionof the lug `63 Will abut the lug striking the rigliteiid of the ,fiangm a left end, portion 66"of the lug may bebent slightly downward (Figures 3 and 5). y

67, `having one end fastened through'a `hole taandthe other end fastened through a hole 'l1 lever `63 bythefinger-piece 59,the aforesaid "eivliichdirectly receives etheblovvfdue to arbends 55 and 56." Will `alsobe noted that the l portion of theilever 50 disposed `forwardly C plate 151 aidistance` equal to the thickness `ofi `the armQi" and the carriage-release leverQ. i l Tobltransniitftlie strain caused bystoppiiig. 1 the moving `cai'iage from the lug 63x to is `providedon'the lower `edge 'of i the fliendlfl, `and bent to the right and tcrfend of the lever 5l) fits loosely over thebusliing,perinittiiigthelever to swing a smallA amount; sidevvisey` Mivithout 1 bending when it `of the end-p`latefl5, and stops further move fivardV or pivotal end of` the lever 50 is held 3y the collar `52against atendency toysvving t eettimrdWhenjthe` lug 69 `strikes theendfv l lt Will be noted that to centeiand lock the Y carriage elli on the machine by theabove-described means requires only one easy opera tion, a depression ofthe conveniently placed finger-piece 59. After the carriage lll iscen` tered, a cover 70, of `a carrying case general; ly designated 7l, may be placed over the machine and loclred to a base 72 to Whiclithe main frame 42 is usually attached. e

`Wlien the coveris in position over the carriage lll, which has been centered by the devices of the present invention, the right-hand Wall of the cover Will` be disposed in Close proximity toa usual finger-Wheel 73 at the right end of the platen, and Will prevent rightivard movement of the carriage, and thus prevent release ofthe lever 50.

To prevent up-and-down movement of fil `shift-frame 3G While the machine is in `its case, tivo pads'i'll of soft, spongyrubber may` be fastened to the underside of the top of the cover'O so as to bear down on each endof l the platen-carriage lll, when the cover is locked in place onthe `base T2; `The case 71 fand pads 74 may be lilre the case and pads disclosed in `the patent to George YV. Campbell,

No. 1,639,761, dated August 23, 1927.`

The present invention, While disclosed as applied to an Underwood portable typevvrit ing machine, can be easily `redesignedto be applied to other maires `oftypewriting machines Without involving invention.

Variations may beresortedto Within the scope of the invention, and `portions of the` improvements may be used without others.

e Having thus describedmyinvention, l

claim: i f l `l. ln a typewriting machine, the combination `with a laterally fixed shift-frame, a

platenbarriage movable in letter-feed direc-l tion and return, an `escapement-rnechanisnn and a carriage-moving motor, `of a carriagecentering lever on said carriage yieldingly heldin ineffective position andtmovableto eflective position for engagement with said `traine, ineens eective upon operation of said lever for releasing said carriage `from said escapementfniecliaiiism` to permit said motor to move said carriage leftivardly, saidlever and said `frame co-operating to arrest the movement ofisaid carriage when it is centei'edon said machine, a locking member on said" lever for engaging saidfrarne and retaining said lever `inl effective carriage-arn resting engagement with said frame, said engagement holding said carriage `disengaged from said escapemeiit-nieclianism,` and `a case i for said machine including a cover fitting l over said iinacliinein closeproiimity to its` e sides and preventing rightwardimoveinen't fof said "carriage, said engagement of said leverand saidframe being releasable, after yreniovalof said` eoveigfby movement of saidI l oarriageto the right.` e l e ,l l

`2. In a typewriting machine, the combina carriage-centering lever as said carriage is Amoved leftwardly upon operation of said d carriage-release lever, a lng on said carriage- `centering lever extending laterally in front .i of the foi-ward edge of said carriage-release leverabove its axis, and yielding means urg- Wing. saidv centering` lever clockwise, whereby .l centering lever will operate said `carriagereleaselever, and countercloclwise operation a of said release-levermay be performed without `affecting said centering lever.

v all. ln a `typewriting `machine of the class described, `in combination, a platen-carriage having strong, rigid end plates, a rearwardlyplaceable downwardly, and its rear end pori tion effectivefor engaging Valaterally fixed member of` said machineffor arresting said carriage upon movement of the lsame left- Qwardlyto a position wherein it is "centered on aid machine, and means fortransmitting `theblow, taken by said moving lever because to the right-,hand rigid end plate;

l2. Thestructure described in claim l1,

tegral rightwardly-extending lug which ter- 1 `minates in close `proximity to said right-hand `end plate, saidlug being positioned a short lever which'engages said fixed member,` y Ina typewriting machine of the class described, in combination, a platen-carriage having strong, rigid end plates, a rearward- `1yr-extending carriage-centering lever loosei lylpivoted on said carriage adjacent theirighty hand end `plated thereof, said lever being displaceabledownwardly, and its rear end ortioneffective `for engaging a laterally xed member `of `said machine for arresting said carriage i, upon movementof the same leftsaid machine, `means for transmitting the -1 blow, taken by said moving lever because of `its engagement with` said fixed member, to the'right-hand` rigid end plate, including an "flever which terminates in close proximity to `saidright-hand` endplate, said lug beingpositioned `ashort distance forward from the figi'eeisii lOiIn a typewriting machine of the class ring lever pivoted i' about said `to effective position will eperatesaid car-` riage-release lever, a stop for engaging said.`

i coiinterclockwisemovement of said carriage-` extending carriage-centering lever loosely `V i pivoted on said carriage adjacent the/right` hand end plate thereof, said lever being dis-` "of its engagement with said fixed member,

`characterized by said lever including an in-` Vdistanceforward from theportion of said wardly to aposition wherein itis centered on Adown to y integral rightwardly-extending lug on said `];ifortioii of saidlever which engages said fixed Gnus i exea member.

:1i jiiiaiypewifiaiig man@ 10i hsites "described, in. combination, ra "platen-carriage having "stiff b uinyielding end plates, a pflatene "shaft `on said carriage,a platen onisaidjshaft, `a rearwardly-extending carriage-centering flever loosely pivoted `aboiitslaid platen-shaft and displaeeablegdownwardlyl'to, "make the i `rearend portionof saidlfleverfeffectiv for "abutting against a "fixed iineinber lof said'fnia- 'chine upon movement of said "carriage "left-` Awardly to la position wherein itis centered on said machine, and means for transmitting to i Jthe .right-hand end platef the `blow taken by said moving lever upon `engaging with said fixed member,` said means` including a collar aroundsaid platen-shaftpositioned between f said platen and the pivotalend of said lever, "and a `irightwardly-extending liigon said "leverbterminatingin close proximity tosaid right-handend plate land positioned ,totthe` rear ofsaid collarand adj aceiitthe portion of saidl `leverwhicli strikes `against said" `fixed member. f ,v Intypewriting machine of the class described, in combination, a :laterally-fixed shift-frame, l a platen-carriage movable ion said "frame `inl letter-feed direction and lre-` turn, a displaceable. lever mounted on `said carriage to move normally above said shiftframe and depressiblefor engagement with said shift-frame when said carriage, moving leftwardly, is centered on Said machine,`

means for locking said lever and said frame in engagement, and means, upon right-ward y movement of said carriage, for restoringsaid lever to normal position.

16. In a typewriting machine of the class described, in combination, a laterally-fixed shift-frame, a platen-carriage on said frame,"

`a carriage-centering lever on said carriage, means for holding said lever in ineffective position above said frame, including a tensile spring pulling upwardly on said lever and a laterally-disposed feed-roll-release shaft, against which said lever strikes when pulled by said spring, and means for limiting the downward movement of said lever,`whereby` to bring it into engagement with an upper i `member of saidframe, said limiting means including `a `portionof said lever extending upwardly in the rear of said shaft, a `rear-. wardly-extending finger-piece on said upwardly-extending porton, and `a cross-rod on said carriage against which said` lingerpiecestrikes whensaid lever has been moved position for engagingsaid upper member. y d

17 In a typewriting machine having a y frame, thecombination with aplaten-carriage having a propelling spring, an escape-` ment-mechanisin and a carriage-releaser, of

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fm luggage-sai@ prag-@ted device w lambris 111 positin; and thereby-,mm

z; .-FBEDEMCK @CQNARD 

